1884.] A walk through the Nat. History Museum at Florence. 485 
the other species is an elongate oval. The tendency in the genus 
has been to complicate the premolars and shorten the tubercular 
in the course of time. The smallest species is the D. dawkinst- 
anus (Fig. 30), from both the Big Horn and Wind River beds, an 
abundant and acute-toothed species. The largest species is the 
D. altidens Cope, whose jaws are more robust than those of the 
coyote. 
I append the following table showing the distribution of the 
_ genera of Creodonta in the North American Tertiary forma- 
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A WALK THROUGH THE NATURAL HISTORY 
MUSEUM AT FLORENCE. 
BY JAMES S. LIPPINCOTT. 
; §ovTHwarp from the great Pitti palace in Florence, on the 
Ve Romana, which, like all other roads, leads to Rome, 
Of the «. ose exterior is but an indiffere: Xpo : 
the treasures within, Unlike the palace near at hand, which 
